:root{--bg: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #f0f1f3;--text: #1a1a2e;--text-secondary: #6c757d;--text-muted: #adb5bd;--accent: #e8613c;--accent-hover: #d4542f;--accent-light: rgba(232, 97, 60, .08);--border: #e9ecef;--border-light: #f1f3f5;--radius: 8px;--radius-sm: 4px;--radius-lg: 12px;--shadow: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .12);--max-width: 1400px;--font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;--transition: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-height:100vh;display:flex;flex-direction:column}img{max-width:100%;height:auto;display:block}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--accent-hover)}h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:600}h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:clamp(1.375rem,3vw,1.875rem)}h3{font-size:clamp(1.125rem,2.5vw,1.375rem)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1rem}@media(min-width:768px){.container{padding:0 2rem}}main{flex:1;padding:2rem 0}.site-nav{position:sticky;top:0;z-index:100;background:#ffffffeb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:80px;gap:1rem}.nav-brand{display:flex;align-items:center;gap:.25rem;text-decoration:none;flex-shrink:0}.nav-brand:hover{opacity:.85}.nav-brand img{height:60px;width:auto}@media(max-width:768px){.nav-brand img{height:40px}.nav-brand .nav-s2k{display:none}.nav-inner{height:60px}}.nav-links{display:flex;align-items:center;gap:.25rem;list-style:none}.nav-links 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1rem}.auth-card{width:100%;max-width:420px;background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow)}.auth-card h1{text-align:center;margin-bottom:.5rem}.auth-card .auth-subtitle{text-align:center;color:var(--text-secondary);font-size:.9375rem;margin-bottom:1.5rem}.auth-form{display:flex;flex-direction:column;gap:1rem}.auth-footer{text-align:center;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-light);font-size:.875rem;color:var(--text-secondary)}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all 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a{color:var(--text-secondary)}.breadcrumbs a:hover{color:var(--accent)}.breadcrumbs .separator{color:var(--text-muted)}.site-footer{padding:2rem 0;border-top:1px solid var(--border-light);color:var(--text-secondary);font-size:.8125rem}.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.footer-links{display:flex;gap:1.5rem;list-style:none}.footer-links a{color:var(--text-secondary);transition:color var(--transition)}.footer-links a:hover{color:var(--text)}.alert{padding:.875rem 1rem;border-radius:var(--radius);font-size:.875rem;margin-bottom:1rem}.alert-error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}.alert-info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.empty-state-icon{font-size:3rem;margin-bottom:1rem;opacity:.4}.empty-state h3{margin-bottom:.5rem;color:var(--text)}dialog.lightbox{position:fixed;inset:0;width:100%;height:100%;max-width:100%;max-height:100%;background:#000000f2;border:none;padding:0;z-index:1000}dialog.lightbox::backdrop{background:#000000f2}.lightbox-inner{display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:1rem}.lightbox-img{max-width:100%;max-height:100%;object-fit:contain}.lightbox-close{position:fixed;top:1rem;right:1rem;width:44px;height:44px;background:#ffffff1a;border:none;border-radius:50%;color:#fff;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1001;transition:background var(--transition)}.lightbox-close:hover{background:#fff3}.lightbox-nav{position:fixed;top:50%;transform:translateY(-50%);width:48px;height:48px;background:#ffffff1a;border:none;border-radius:50%;color:#fff;font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1001;transition:background var(--transition)}.lightbox-nav:hover{background:#fff3}.lightbox-prev{left:1rem}.lightbox-next{right:1rem}.lightbox-counter{position:fixed;bottom:1rem;left:50%;transform:translate(-50%);color:#ffffffb3;font-size:.875rem;z-index:1001}.page-title{margin-bottom:.25rem}.page-description{color:var(--text-secondary);font-size:1rem;margin-bottom:2rem;max-width:700px}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:skeleton-pulse 1.5s ease-in-out infinite;border-radius:var(--radius)}@keyframes skeleton-pulse{0%{background-position:200% 0}to{background-position:-200% 0}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.gap-1{gap:.5rem}.gap-2{gap:1rem}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}@media(max-width:767px){.hero{padding:2rem 0 1.5rem}.hero-stats{gap:1.5rem}.profile-header{flex-direction:column;text-align:center}.image-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.nav-links{display:none}}.nav-toggle{display:none;background:none;border:none;padding:.5rem;cursor:pointer;color:var(--text);font-size:1.5rem}@media(max-width:767px){.nav-toggle{display:flex}.nav-links.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);padding:.5rem 1rem 1rem;box-shadow:var(--shadow-lg)}.nav-links.open a{padding:.75rem;width:100%}.nav-actions{gap:.25rem}}